Vitamin B-12.
D000752:Anemia, Pernicious / Q000188:drug therapy; D004906:Erythrocyte Count; D006801:Humans; D006879:Hydroxocobalamin / Q000627:therapeutic use; D007437:Intrinsic Factor / Q000627:therapeutic use; D008110:Liver Extracts / Q000627:therapeutic use; D012156:Reticulocytes; D014805:Vitamin B 12 / Q000008:administration & dosage / Q000009:adverse effects / Q000097:blood / Q000378:metabolism / Q000627:therapeutic use*; D014806:Vitamin B 12 Deficiency
D008110:Liver Extracts; D007437:Intrinsic Factor; D014805:Vitamin B 12; D006879:Hydroxocobalamin